//package enumerations;// enumerations/Dominance.java
//// (c)2021 MindView LLC: see Copyright.txt
//// We make no guarantees that this code is fit for any purpose.
//// Visit http://OnJava8.com for more book information.
//// {NewFeature} Preview in JDK 17
//// Compile with javac flags:
////   --enable-preview --source 17
//import java.util.*;
//
//sealed interface Base {}
//record Derived() implements Base {}
//
//public class Dominance {
//  static String test(Base base) {
//    return switch(base) {
//      case Derived d -> "Derived";
//      case Base b -> "B";            // [1]
//    };
//  }
//}
